FORD MOTORCRAFT IRIDIUM One Step Colder Spark Plugs (Pre-Gapped) – 2018-2020 F150 5.0L

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– SET OF 8 –ULTIMATE PERFORMANCE FOR 2018-2020 5.0L. SP581X Designed specifically for the performance enthusiast, Iridium X offers extreme ignitability, improved throttle response and superior anti-fouling. Pre-gapped to .028″ Engineered for enhanced ignition efficiency, ensuring reliable and consistent engine performance. Durable iridium tip on the center electrode provides precise ignition and long-lasting functionality. Platinum ground electrode enhances wear resistance and extends the lifespan of the spark plug. Tapered seat type ensures a secure fit, reducing the risk of gas leakage and improving sealing. Optimized design contributes to maintaining fuel economy and overall vehicle performance over time. Heat range 8. Show more